[root ~]# w
 23:31:16 up 12:16,  2 users,  load average: 0.00, 0.01, 0.05
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
root     pts/0    182.139.66.250   23:03    4.00s  0.02s  0.00s w
jackfrue pts/1    182.139.66.250   23:26    3:56   0.00s  0.00s -bash
[root ~]# who
root     pts/0        2018-04-12 23:03 (182.139.66.250)
jackfrued pts/1        2018-04-12 23:26 (182.139.66.250)
[root ~]# who am i
root     pts/0        2018-04-12 23:03 (182.139.66.250)
[root ~]# who mom likes
root     pts/0        2018-04-12 23:03 (182.139.66.250)
[root ~]# last
root     pts/0        117.136.63.184   Sun May 26 18:57   still logged in   
reboot   system boot  3.10.0-957.10.1. Mon May 27 02:52 - 19:10  (-7:-42)   
root     pts/4        117.136.63.184   Sun May 26 18:51 - crash  (08:01)    
root     pts/4        117.136.63.184   Sun May 26 18:49 - 18:49  (00:00)    
root     pts/3        117.136.63.183   Sun May 26 18:35 - crash  (08:17)    
root     pts/2        117.136.63.183   Sun May 26 18:34 - crash  (08:17)    
root     pts/0        117.136.63.183   Sun May 26 18:10 - crash  (08:42)